Error when uploading the data : 1 duplicate record found. 307 recordings used

I am getting an error message when uploading the data in the infopackage
" 1 duplicate record found. 307 recordings used in table /BI0/PBBP_PO_ID"
Can anyone help how to resolve this problem.
we are using the version 3.5.

This happens when you are uploading master data for 0BBP_PO_ID (though it
seems to be a number of purchase orders??)
Please check your data to undertand if it's normal to have duplicate
records.
To bypass this message you can adjust your

Copyright 1998-2015 Ziff Davis, LLC (Toolbox.com). All rights reserved. All product names are trademarks of their respective companies. Toolbox.com is not
affiliated with or endorsed by any company listed at this site.